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1. 发明申请

WO2004068720A3 DISCONTINUOUS TRANSMISSION (DTX) DETECTION USING DECODER METRIC 审中-公开
标题翻译：使用解码器公制的不连续传输（DTX）检测
公开(公告)号：WO2004068720A3
公开(公告)日：2005-04-28
申请号：PCT/IB2004000213
申请日：2004-01-29
申请人： NOKIA CORP , NOKIA INC , TAPANINEN JUKKA , KENNEY THOMAS , TRAN JEAN-MARIE
发明人： TAPANINEN JUKKA , KENNEY THOMAS , TRAN JEAN-MARIE
IPC分类号： H04L1/00 , H04M13/00
CPC分类号： H04L1/0059 , H03M13/3738 , H03M13/41 , H04L1/0046 , H04L1/0054 , H04L1/0061 , H04L1/0072
摘要： A method detects an absence of a transmitted frame in a wireless communications system that operates with a discontinuous transmission (DTX) protocol between a transmitter and a receiver. The method includes decoding a received signal over a frame period to determine a cumulative metric; normalizing the cumulative metric and comparing the normalized cumulative metric or a zero state cumulative metric. The wireless communications system may be a CDMA system, the receiver may be contained within a mobile station, and the determination of whether the frame was transmitted frame or a non-transmitted frame can be employed, as one non-limiting example, during execution of a power control algorithm.
摘要翻译：一种方法检测在发射机和接收机之间以不连续传输（DTX）协议操作的无线通信系统中没有发送的帧。该方法包括在帧周期上对接收到的信号进行解码以确定累积度量; 归一化累积度量并比较归一化累积度量或零状态累积度量。无线通信系统可以是CDMA系统，接收机可以被包含在移动站内，并且可以采用确定帧是发送帧还是非发送帧，作为一个非限制性例子，在执行期间功率控制算法。

2. 发明申请

WO2004001984A2 METHOD AND APPARATUS PROVIDING AN AMPLITUDE INDEPENDENT AUTOMATIC FREQUENCY CONTROL CIRCUIT 审中-公开
标题翻译：提供独立自动频率控制电路的方法和装置
公开(公告)号：WO2004001984A2
公开(公告)日：2003-12-31
申请号：PCT/US0319254
申请日：2003-06-18
申请人： NOKIA CORP , KENNEY THOMAS , TAPANINEN JUKKA
发明人： KENNEY THOMAS , TAPANINEN JUKKA
IPC分类号： H04B1/707 , H04L27/00 , H04B
CPC分类号： H04L27/0014 , H04B1/712 , H04L2027/0055 , H04L2027/0069
摘要： An automatic frequency control (AFC) loop circuit includes a mixer for mixing a local oscillator signal with a received signal to generate a result signal; a frequency detector coupled to the result signal and outputting a loop error signal; a combiner circuit for combining error signals output from a plurality of fingers of a rake receiver with the loop error signal output fom the frequency detector to generate a combined loop error signal; a sign detector having an input coupled to an output of said combiner circuit for outputting a sign detector ouput signal for indicating a sign of the combined loop error signal; control circuitry for controlling a frequency of the local oscillator signal in accordance with the sign detector ouput signal and a loop filter partitioned into a first loop filter coupled between the output of the frequency detector and an input to the sign detector.
摘要翻译：自动频率控制（AFC）回路电路包括用于将本地振荡器信号与接收信号混合以产生结果信号的混频器; 耦合到所述结果信号并输出环路误差信号的频率检测器; 组合器电路，用于将来自瑞克接收机的多个指状输出的误差信号与所述频率检测器输出的环路误差信号相组合以产生组合的环路误差信号; 符号检测器，其具有耦合到所述组合器电路的输出的输入，用于输出用于指示组合回路误差信号的符号的符号检测器输出信号; 控制电路，用于根据符号检测器输出信号控制本地振荡器信号的频率;以及环路滤波器，其被分为耦合在频率检测器的输出端和符号检测器的输入端之间的第一环路滤波器。

3. 发明申请

WO2004070726A2 DELAY LOCK LOOP CIRCUIT, AND ASSOCIATED METHOD, FOR A RADIO RECEIVER 审中-公开
标题翻译：延迟锁定回路和相关方法，用于无线电接收器
公开(公告)号：WO2004070726A2
公开(公告)日：2004-08-19
申请号：PCT/US2004002418
申请日：2004-01-29
申请人： NOKIA CORPOARATION , NOKIA INC , KENNEY THOMAS J , TAPANINEN JUKKA
发明人： KENNEY THOMAS J , TAPANINEN JUKKA
IPC分类号： H03L7/081 , G11C
CPC分类号： H03L7/0814 , H03L2207/50
摘要： A delay lock loop (DLL) circuit, and an associated method, for a receiver. The delay lock loop circuit is selectably operable in an acquisition mode and a tracking mode. A selector selects operating parameters of elements of the delay lock loop circuit to cause operation of the circuit alternately in the acquisition mode and the tracking mode. Through appropriate selection of the operating parameters, a selected one of the operating modes is effectuated. The delay lock loop circuit is amplitude-independent, operable irrespective of the values of the input signals applied thereto.
摘要翻译：用于接收机的延迟锁定环路（DLL）电路和相关联的方法。延迟锁定环路电路在采集模式和跟踪模式下是可选择的。选择器选择延迟锁定环路电路的元件的工作参数，以在采集模式和跟踪模式下交替地进行电路的操作。通过适当选择操作参数，可以选择一种操作模式。延迟锁定环路电路是幅度无关的，与施加到其上的输入信号的值无关。

4. 发明申请

WO2004088998A3 METHOD AND APPARATUS PROVIDING UNBIASED SIGNAL-TO-NOISE RATIO ESTIMATION AND ITS APPLICATION TO DISCONTINUOUS TRANSMISSION DETECTION 审中-公开
标题翻译：提供未消息的信号噪声比估计的方法和装置及其应用于不连续传输检测
公开(公告)号：WO2004088998A3
公开(公告)日：2004-12-02
申请号：PCT/IB2004000934
申请日：2004-03-29
申请人： NOKIA CORP , NOKIA INC
发明人： TAPANINEN JUKKA
IPC分类号： H04B1/707 , H04B7/005 , H04B17/00 , H04L25/02 , H04B1/10
CPC分类号： H04B1/707 , H04B1/7097 , H04B17/336 , H04B2201/70701 , H04L25/0204 , H04W52/24
摘要： Disclosed are a method and an apparatus to estimate a signal-to-noise ratio (SNR) of a signal. The method includes sampling the signal(A), correlating and channel estimating the sampled signal(B), symbol combining the correlated and channel estimated signal(C), such as by using a maximal-ratio combining technique, estimating pilot channel and noise power(D) to obtain a combined pilot power and noise variance estimate to an Eb/Nt (SNR) estimator(E). The method further includes, in the Eb/Nt estimator, subtracting a noise term, multiplied by a constant(F) from the combined signal power and computing a ratio of the unbiased signal power to the noise power to obtain an unbiased Eb/Nt estimate(G). Having obtained the unbiased (Eb/Nt) estimate, the method may integrate the unbiased Eb/Nt estimate for a frame duration(H) and compare the integrated unbiased Eb/Nt value to a predetermined threshold value to make a decision as to whether the frame was a transmitted frame or an untransmitted (DTX) frame(I).
摘要翻译：公开了一种估计信号的信噪比（SNR）的方法和装置。该方法包括采样信号（A），相关和信道估计采样信号（B），组合相关和信道估计信号（C）的符号，例如通过使用最大比组合技术，估计导频信道和噪声功率（D）以获得对Eb / Nt（SNR）估计器（E）的组合的导频功率和噪声方差估计。该方法还包括在Eb / Nt估计器中，从组合信号功率中减去乘以常数（F）的噪声项，并计算无偏信号功率与噪声功率的比值，以获得无偏差的Eb / Nt估计（G）。已经获得了无偏差（Eb / Nt）估计，该方法可以将帧的持续时间（H）的无偏差的Eb / Nt估计进行积分，并将积分的无偏Eb / Nt值与预定阈值进行比较，以决定是否帧是发送帧或未发送（DTX）帧（I）。

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